3.8. Type of Aggregates

Try these first

1. 1.

   What are the two main types of aggregates used in concrete?

   Hint

   Think about size differences.

2. 2.

   Why is specific gravity important for aggregates?

   Hint

   Consider how it affects water-cement ratio.

3. 3.

   What are the main types of aggregates used in concrete?

   • Fine and Coarse
   • Only Fine
   • Only Coarse

   Hint

   Remember the classification based on size.

4. 4.

   Is specific gravity important in the selection of aggregates?

   • True
   • False

   Hint

   Think about mixing ratios.

5. 5.

   Given a concrete mix design where the maximum size of the coarse aggregate is specified as 40mm, explain how selecting a larger aggregate might affect the concrete's workability and strength.

   Hint

   Think about how aggregate size affects filling voids.

6. 6.

   How might the use of recycled aggregates, compared to traditional aggregates, influence the overall quality of concrete?

   Hint

   Consider how aggregate origin affects concrete performance.